Starting A Fire; Damper Control - Lennox Hearth Products FP-38 Homeowner's Care And Operation Instructions Manual

To determine the best heating source, look at
the density of various wood types (Density is
the weight for a given size). The higher the
density, the more potential heat output. A stan-
dard cord has a volume of 128 cubic feet. This
figure also includes the air space between and
around the wood. The actual volume in a stan-
dard cord is between 60 and 100 cubic feet;
depending on how tightly the wood is packed.
Assuming that you are comparing two standard
cords of different species but the same volume
and moisture content, the denser species will
provide more BTU's. The table of wood species/
densities reveals more helpful guidelines.
HARDWOODS
Alser, Red
Ash
Aspen
Basswood, American
Beech, American
Birch
Butternut
Cherry, Black
Chestnut, American
Cottonwood
Elm
Hackberry
Hickory, Pecan
Hickory, True
Honey locust
Locust, Black
Magnolia
Maple
Oak, Red
Oak, White
Poplar
Sassafras
Sweet gum
Sycamore, American
Tanoak
Tupelo
Walnut, Black
Willow, Black
SOFTWOODS
Bald cypress
Cedar
Douglas Fir
Fir
Hemlock
Larch, Western
Pine
Redwood
Spruce
Tamarack
4

STARTING A FIRE

1. To start a fire in a the fireplace properly, first
check the operation of the flue damper.
2. To prevent smoking at start-up, close any
window located near the fireplace when first
lighting a fire. The closed windows may be
reopened once a chimney draft is drawn in the
fireplace.

DAMPER CONTROL

This fireplace is fitted with a manually con-
trolled chimney damper. The chimney damper
should be closed when the fireplace is not in
use to prevent cold air from entering the home
DENSITY
through the chimney system.
.41
The damper is controlled through the use of a
.49-.60
control lever located within the firebox open-
.38-.39
ing at the top center just behind the firebox
.37
lintel ( Figure 2 ).
.64
.55-.65
The control lever snaps into place at the ex-
.38
treme range of motion, up and back in the
.50
closed position. When pulled forward and
.43
down, the damper is open.
.34-.40
.60.63
.53
.60.66
.69-.75
.66 (est.)
.69
.48-.50
Lintel
.48-.63
.59-.67
.64-.88
.42
.42
.52
.49
.64 (est.)
Figure 2
.50
.55
.39 The appliance flue damper must always re-
main open when operating.
DENSITY
2. The grate in the firebox should be centered
.46
on or over the bottom hearth so your fire can
.31-.47
breath properly. Crumble and twist plenty of
.46-.50
newspapers UNDER the grate and criss-cross
.32-.43
some small dry kindling sticks on top of the
.40-.45
paper or on the bottom of the grate.
.52
.39-.59
3. Build a pyramid of three split logs (split will
.35-.40
start much faster). Arrange the uneven wood to
.35-.41
provide plenty of air space between.
.53
4. Now, light the paper at both sides of the
firebox.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Damper
Damper
Closed
Open
Combustion
Air Actuator
5. Close the screens to prevent the escape of
sparks and embers.
6. Close the damper only when your fire is
completely out and ashes are cold. Keep closed
when fireplace is not in use to prevent unneces-
sary loss of heated or cooled air.
SCREEN PANELS
The screen panels must be closed when the
fireplace is operated with the glass doors open.
However, the screen panels may be left open
when the fireplace is operated with the doors
closed.
GLASS DOOR SAFETY PRECAUTIONS
FirePlus TM systems include a twin-pane, full en-
closure, ceramic door with conventional screen
panels. The door and screen panels can be
opened for easy refueling. While the fireplace
may be operated with the glass doors fully open,
it is recommended that the doors be fully closed
during operation for best performance. When
opening the doors to refuel, a slight spillage
should be expected. This should be considered
normal. Open doors slowly, otherwise an in-
crease in smoke spillage could occur.
WARNING: IF THE DOORS ARE LEFT PAR-
TIALLY OPEN, GAS AND FLAMES MAY BE
DRAWN OUT OF THE OPENING, CREAT-
ING RISK OF BOTH FIRE AND SMOKE.
Glass Doors
Fully Open or
Fully Closed
Figure 3
CAUTION: YOUR FIREPLACE IS EQUIPPED
WITH CERAMIC GLASS DOORS. EXER-
CISE CAUTION WHEN OPENING AND
CLOSING THESE DOORS AS CERAMIC
GLASS IS EASILY BROKEN BY A ME-
CHANICAL IMPACT.
IMPORTANT: DO NOT OPERATE THIS FIRE-
PLACE SYSTEM WITH BOTH THE SCREEN
PANELS AND GLASS DOORS OPEN.